" I should want to cook [Mr. Belvedere] a simple meal. But I shouldn't want to cut into him, to tear the flesh, to wear the flesh, to be born unto new worlds where his flesh becomes my key."A nut who follows the main characters everywhere out of obsessive admiration, either causing trouble or just creeping them out. Extreme loony fans may go to great lengths and evil deeds to "help" the hero they idolize. They take their eventual rejection very personally. Occasionally this character will really go off the deep end and attempt to replace their hero. This can also overlap with the Straw Fan, The Collector, the Yandere, the Poisonous Friend, and/or the Stalker with a Crush. Compare Actor/Role Confusion, Cannot Tell Fiction from Reality. Contrast with Ascended Fanboy. Sad (and a little scary) to say, this is very much Truth in Television.
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Anime and Manga
- A number of anime series feature cult-of-personality fan clubs in high school settings (ie. Fruits Basket, Love Complex). Usually played for laughs rather than played straight.
- Played for laughs in Darker Than Black (and maybe a little torpedo aimed at shippers). Kiko is portrayed as slightly crazy anyway, but her crush on "Li" tops all other quirks. She almost jumps on him with squee, loudly insults her "rival" Kirihara, and generally attracts unnecessary attention... which is somewhat disconcerting for her hero, as "Li" is the facade identity of a lad who earned his nickname "Black Shinigami".
- Gokudera from Katekyo Hitman Reborn!. He frequently goes off to beat people up for Tsuna's sake, and follows Tsuna around trying desperately to be his "Right Hand Man." Although the funny thing is that his attempt to replace the hero was actually his initial feeling, and that it's after being defeated by Tsuna that he becomes his Loony Fan.
- Kasaya's girlfriend Eri from Zetsuai 1989 goes so over the edge that she tries to stab her idol Kouji because he's about to go into retirement.
- Arguably the basis of the 1998 anime film Perfect Blue (unarguably, a Loony Fan does at least appear in the anime).
- Toto Sakigami of Deadman Wonderland is apparently this toward the Wretched Egg.
- Lecto from Magical X Miracle has a series-long obsession with Yue (as well as great admiration for Merleawe for being so close to him), to the point where things get... awkward. However, this turns out well for both of them; Lecto eventually becomes an in-series Promoted Fanboy as one of Yue's top aides, and his nerdy personality quirks and stalker-like obsession settle down after Yue puts him through three years of Workaholic boot camp.
- Hayashi Rintaro, also known as Rin-rin, is the local florist on Shirokuma Cafe. He's also a scarily obsessive fan for pandas to the point that Panda, the resident Attention Whore, can't stand him and all the attention that Rin-rin gives him.
- In Yu-Gi-Oh! 5D's, the Big Bad ZONE is revealed to be a Loony Fan of Yusei. He admired Yusei so much that he altered his own face to look like Yusei as part of his plan to emulate Yusei as much as possible in the hopes that some of Yusei's luck would rub off on him to help his plan.
- Being a deconstruction of the Fighting Series Played for Laughs, Muteki Kanban Musume: Deconstructs this trope with Akihiko, who despite being abused at his childhood , has become an adult Nice Guy who is everyone’s Butt Monkey. Akihiko deeply desires to be the like the Red Ranger (from the Sentai Show Within a Show Star Rangers) because he is always recognized for his efforts with a 100% Heroism Rating. Akihiko is so found of the Red Ranger that he copies his Catch Phrase I’ll pay them back several times over and uses it in situations that doesn’t even make sense:
Akihiko: Just leave it to Star Ranger!Wakana: (Very confused) Star Ranger?Akihiko: That Toshiyuki, I’ll bring him back several times over.Wakana: No, just once is enough.
- Baccano!: Graham Spectre to the resident Psycho for Hire, Ladd Russo. Ladd being Ladd, he doesn't mind.
- Misa Amane of Death Note is this to Villain Protagonist Light Yagami, albeit a particularly dark, homicidal example; after he winds up killing the guy who killed her parents, she's more than glad to murder his enemies or endure Cold-Blooded Torture to protect his identity. She's also glad to flying tackle him at unexpected intervals, much to his dismay. A crucial part of her own backstory involves a narrow escape from a Loony Fan - the parallel is as lost on Misa as warnings about moral decay are on Light.
- The fanbase for the titular Detroit Metal City is made up mostly of loud, vulgar and belligerent fans who can't tell that frontman Krauser II and his insane, over-the-top antics is just a persona, and often show up around Krauser when he's out of makeup and unrecognizable to cause trouble.
- Roma Hoito from Tokyo Ghoul, a clumsy waitress that started working at Anteiku for the chance to meet "One-Eyed Kaneki-sama". The sequel reveals her to be an even loonier fan than expected, declaring that she wants to "kill" Haise because she can't stand seeing her beloved Kaneki happy and thinks he's most beautiful when his life is in ruins.
- Jimmy "Mmy" from Jhonen Vasquez's Johnny the Homicidal Maniac, although he is considerably less insane than Nny.
- The extradimensional imp Bat-Mite in the wackier Batman comics.
- Jenny in The Punisher MAX comes across as this. After seeing Frank shot by the women she is targeting she saves him and takes him to her apartment. The scenes between them invoke Misery, and Frank feels a little like her prisoner, but Jenny does nothing to stop him and the reason he can't leave is his gunshot injuries, and he patiently listens as she describes what was done to her, and sympathy for what was done to him. Jenny then has two requests: his shirt and jacket so she can become The Punisher and kill the women who hurt her, and that he stay until she finishes it. Frank feels more and more like he's trapped, and that Jenny would stop him even if he could leave, before passing out and ending up handcuffed so Jenny can show him how to torture criminals.
- In Green Lantern Corps, Iolande's brother Ragnar was so obsessed with the Corps he murdered every potential Lantern candidate in their sector so he would end up the best candidate for the position, including his brother Stentar and Soranik Natu's partner Myrrt. When Ragnar was finally exposed, captured, and set for execution, Soranik purposefully chose to reveal that Iolande would be the new Green Lantern of Sector 1417 right before Ragnar would be beheaded. To add to this Kick the Son of a Bitch moment, Ragnar made an empty admission of guilt and repentance to show he "wasn't afraid" before his execution, thinking he still had a chance to be a Lantern. The look on his face when Soranik takes out the ring, then gives it to his sister, is satisfying.
- Nero: In the trilogy De Gelukbrenger, De Verloren Zee and De Wraak van Nganga Nero is stalked by an obsessive fan of his comics, Wolfgang Amadeus Glasnost, who has read every album and finds everything is fantastic. He does have a hidden gift that makes Nero keep him, though: he brings good luck. For instance, if he writes down the lottery numbers it will be automatically a winning combination.
- In the New Line Cinema's Tales of Horror story "Copycat", the dreamstalking killer Freddy Krueger learns that the guy using his image to murder people is actually a huge fan of his, and isn't the only one. When the guy tries force him into a partnership, Freddy employs the help of another sociopathic fan of his to get rid of the copycat.
Carter: Dude, I totally know who you are... I worship you. Please don't kill me... I'm your biggest—Freddy: Fan, I know. Lot of that going around. What kind of fucked up world is this, anyway?
- In The Incredibles, the villain Syndrome was once a young Loony Fan who wanted to be Mr. Incredible's sidekick, and his rejection was one of the factors that led him to become a villain, not an Ascended Fanboy, as he so desperately wanted, but a Genre Savvy bad guy.
- Robert De Niro's roles in The Fan and The King of Comedy fit this trope as well.
- In fact, The King Of Comedy has two loony fans who are obsessed with the same in-universe celebrity, DeNiro just has the lead role: Rupert Pupkin mainly seems obsessed with Jerry Langford because he wants to be famous himself, while Masha (Sandra Bernhardt) is more of a traditional Stalker with a Crush type, eventually having a Captive Date with Langford.
- The Kid in the Matrix sequels is portrayed as a mild example of this.
- From the Halloween series:
- In Blades of Glory, Jimmy having one of these is kind of what causes the plot to kick off, but in a surprisingly non-scary way in spite of some of the creepy things that the Loony Fan says to him. This particular fan of his is so obsessed with the idea of having Jimmy back on the rink and is so much the type to think about these things a lot that he manages to find a loophole in the Figure Skating Championships rulebook that Jimmy then exploits.
- The eponymous teddy bear of Ted used to be a celebrity thanks to being a Living Toy. While he no longer has that status, he still has an obsessive fan named Donny, who wanted his own magical teddy bear when he was a kid. When his father denied him one, he vowed never to deny any similar request for his own son. Donny and his son Robert first attempt to buy Ted off from John, but when that didn't work out, they resort to kidnapping him.
- Bob Roberts has a collection of Loony Fans (including an early Jack Black) who start off as kooky religious fanatics and then quickly upgrade to outright malicious when they assault a group of protestors outside one of his concerts. One of them is implied to have shot and killed Bugs Raplin, who was exposing some of Roberts' dirty secrets until Roberts faked an assassination attempt (and the parapeligia that followed) and pinned the blame on him, and when one of the fans camped outside his house catched him walking around by a window, he immediately assumes it was a miracle instead suspecting any fowl play.
- Played for laughs in Bombshell, in which glamorous Hollywood star Lola Burns has a Loony Fan who keeps popping up and telling her she has to come home to take care of their babies.
- Taken to dark extremes with Annie Wilkes of Stephen King's Misery. Though she's more like an Ax-Crazy fan.
- Harry Potter: Colin Creevey.
- The Culture: A less technologically advanced civ, the GFCF, imitate the Culture and think that they are the best people in the galaxy. They don't do it very well, and although the Culture consider them vague allies, they don't take them seriously. This could be a mistake...
- Older Than Steam: Don Quixote: Sanson Carrásco presents himself as the number one fan of Don Quixote and discusses various continuity errors with him and Sancho. However, his real goal is to help the poor, mad fool regain his sanity by following in his third quest. Hilarity Ensues.
Live Action TV
- Played for laughs in an episode of Friends, where Brooke Shields portrayed a Loony Fan stalking Joey, convinced he was really the character he played in a soap opera (they got rid of her by convincing her that Joey was actually the Evil Twin instead).
- There was also the Fonzie-obsessed doctor who delivered the triplets.
- In Monk, Sarah Silverman is the equally alliterative Marci Maven, who is like this Up to Eleven, to the point that she's furnished her house with furniture Monk threw out, and she's wearing his old pants. Apparently Monk also took out a restraining order against her. Amusingly this extends to minor Meta Gal traits, like referring to his cases by episode title.
- The Jonathan Creek episode "Danse Macabre" featured am obsessed fan who followed a horror writer from the US to the UK and eventually cut the head off her dead body and carried back to America with him.
- Played with in an episode of the short-lived HBO series of Tenacious D. It starts with Lee, a fan who is overly-obsessed with Tenacious D, but afterwards the Tenacious D duo becomes overly-obsessed with Lee, culminating with his murder.
- Mel in Flight of the Conchords - president and sole member of the band's fan club and relentless stalker.
- Mandy from iCarly. After appearing as a guest their web show, she followed Carly, Sam, and Freddie around constantly and even switched schools to be around them, which drove them crazy. Mandy eventually became obsessed with a band and seemingly moved onto to pestering them but a more recent episode showed she was back to obsessing over iCarly.
- An episode of music group S Club 7's TV series featured an annoying fan that was at first obsessed over Bradley and then later Rachel.
- Joxer from Xena: Warrior Princess initially. Xena gets a handful of other "I've studied your every move!" (sometimes followed by "Now we must fight with knives!") type of meetups, but they're generally not the following-around kind of groupies.
- In one episode of Dollhouse, the title organization is hired to protect a rock star from a Loony Fan. Echo becomes a back-up singer, while another Active becomes a Big Name Fan.
- In the Doctor Who mini-episode "Time Crash", the Fifth and Tenth Doctors accidentally meet. Ten, delighted, immediately recognizes his former self, but Five takes him for an obsessive fan and is most annoyed.
- The Amanda Show had Penelope Taynt (played by Amanda, herself), a nerdy fangirl and webmistress of her own Amanda fan site (which actually exists!)
- Supernatural had Becky Rosen, a parody of some of the show's more extreme fans, who wrote incest fanfiction about Sam and Dean.
- In Charmed, when their secret is finally revealed, they encounter a young witch who wants to join their coven. After she breaks into their house and is promptly shut down, she doesn't take it well and ends up shooting Piper.
- After G'Kar's personal diary is published (without his permission, as he hadn't finished it yet) as a holy book, in the fifth season of Babylon 5, he is hailed by his people as a prophet, gaining a following in the hundreds of thousands. Hundreds (at a minimum) of Narns travel to the station to learn at his feet, to his utter horror. He ends up ordering the Narn who created the G'Kar religious statuettes (which he despised) to leave him be and go back home. Shortly before G'Kar leaves the station for good (to get away from his followers), that Narn tries to shoot him and ends up wounding Garibaldi's fiancee by accident.
- Subverted in the Shake It Up episode "Copy Kat it Up", wherein a shy, socially-awkward girl named Kat seems to have a near-stalkerish obsession with the girls, especially CeCe. It turns out to be a Batman Gambit to get a spot dancing on the show.
- The current page quote comes from a Saturday Night Live sketch about a support group for obsessive fans of Mr. Belvedere. They play a game called "Should and Shouldn't" which "helps keep the line between fantasy and reality a little less blurry":
Chris Farley: I should want to say "Hi!" to Mr. Belvedere. I shouldn't want to kidnap him and keep him in a big glass jar in my basement.
Tom Hanks: Okay, okay. That's good, we get that. But why? Why shouldn't you do that?
Chris Farley: [beat] Uh, because his breath would fog up the glass and I couldn't see him then?
- They once did a direct parody of Misery featuring Roseanne Barr as Dana Carvey's biggest fan. After Carvey announces he's retiring the Church Lady character, then gets into a car accident with John Lovitz, Barr rescues him (but apparently left Lovitz to die). When she finds out he's killed off the Church Lady, she starts trying to dress him up as her, to the point of painfully shoving orthopedic shoes on his mangled legs. They get in a fight, until Lovitz shows up completely unharmed, kills Barr, and kills Carvey so he can steal the Church Lady character.
- One episode of Dragnet involves a Woobie Loony Fan. Stanley Stover has had a very hard childhood of paternal abandonment and constant bullying all through school. At a young age, superhero comics and movies offered escape, and he came to identify with these superheroes completely. He had been stealing memorabilia since late grade school, but at twenty-three, he felt driven to accelerate the pace of his thefts. By this time, he was also dressing as his own secret identity, the Crimson Crusader. At the end of the episode, it was revealed that while on probation he received psychiatric help.
- Eminem's "Stan" is presented as a series of letters by a Loony Fan who takes Eminem's "Slim Shady" persona to be Serious Business and tries to emulate him in every way possible... up to and including tying up his girlfriend, stuffing her in his trunk and killing both of them by crashing his car. The song ends with Eminem writing back (to said fan's second letter). Eminem writes in his reply that Stan should seek help, because his case reminds him of a news story he saw about a man who killed his pregnant girlfriend and himself afterwards, he then suddenly realizes that Stan was the man behind the murder-suicide.
- It's since given rise to the term "stan" to mean an overly-committed "fanboy" or "fangirl", especially the type who bashes perceived rival fandoms to an unhinged degree, or utterly whitewashes their favourite character and hates all the other characters on the show for being mean/insufficiently-worshipful to them.
- Maynard James Keenan of Tool is said to brandish a paintball rifle when he sees fans on his lawn simply because of his experience with Loony Fans.
- Lady Gaga's "Paparazzi" is about such a fan.
- In rapper Plan B's concept album "The Defamation of Strickland Banks", Strickland has a drunken one-night stand with such a fan. When he rejects her afterwards, she tells the police that he raped her and he's sent to jail.
- The White Stripes song "Take, Take, Take" is an interesting version: Jack White describes meeting Rita Hayworth at a restaurant and acting like a complete fanboy. Every action of his (seeing her, standing close to her, talking to her, etc.) ends with the words "AND THAT WAS ALL THAT I NEEDED". After every time he says it's all he needed, he thinks of something else he needs from her, until finally she gets up and leaves. "IT WAS AS IF SHE / COULD NOT APPRECIATE / HOW COOL I WAS BEING."
- "Martin Scorsese" by King Missile. The lyrics to the song are the singer impersonating a crazed fan of Martin Scorsese, shouting profane lines about how he wants to meet the director and do various violent acts to him, basically just beating him to death (or at least to a bloody pulp) while thanking him for making the greatest films he's ever seen in his life. Since this trope is a large part of what drove the plot of The King Of Comedy, Scorsese was likely not chosen at random as a subject.
- In the video for the Red Hot Chili Peppers' "By the Way", the lead singer is kidnapped by a taxi driver and has to be rescued.
- The Arrogant Worms have a song dedicated to this trope, reminding her of such things as how none of their songs are about her...except for this one. Which is all about her.
- The video for "Lego House" by Ed Sheeran. At first it appears that Rupert Grint (who resembles Sheeran) is actually playing him in the video: he mimes the lyrics, wanders Ed's trailer and house, and during the final bridge he walks up on stage to thunderous applause...at which point security run on stage and tackle him to the ground, revealing him to be nothing more than an obsessed fan. After this reveal the shots of Grint get more disturbing (including him eating Ed's chewing gum), before it ends with him being escorted out of the venue, passing the real Ed Sheeran on the way.
- As well as the video for Lily Allen's "Who'd Have Known", where she kidnaps Elton John.
- K Pop group Epik High's aptly titled "Fan" is about a "sasaeng" ("extremely obsessive") fan who kidnaps an idol and keeps him imprisoned, watching him constantly from cameras she's installed in his room, giving him "baths" in the washing machine, and eventually thwarting his attempt to burn himself alive when he's inevitably Driven to Suicide. At the end of the video, she straps him to a rocket in order to "return him to the stars" (where, as a "star," she thinks he belongs) and accidentally ends up killing him in the process. The Fridge Horror kicks in when one realizes that the girl in the video is inspired by real sasaeng fans.
- Rainbow's "Starstruck" tells the story of a crazed fan/stalker who is desperate for "a souvenir". Everyone else seems to find it funny, but Ronnie James Dio doesn't.
- Tyler, the Creator's song "Colossus" is a "Stan"-esque song which depicts a fan as being too inspired by him to the point of annoyance and irritation on Tyler's part. Said fan also has some Depraved Homosexual thoughts in mind.
- The narrator of ''Toy Soldiers'' by Marianas Trench.
- Sarah McLachlan based the song "Possession" on real fan mail she received. A look at the lyrics of the song will tell you that these weren't ordinary, polite fan letters.
- Payton Banks started out as a crazed member of the audience, obsessed with Bobby Roode, till she joined TNA's main roster after he hired her.
- Mickie James' original gimmick in WWE was as Trish Stratus's creepy stalker fan. Oddly enough, since Trish retired, Mickie's actually developed into Trish's Expy. One might think this is continuity in action, but continuity has never been WWE's strong suit.
- Beth Phoenix picked up one of her own with Rosa Mendez.
- Sakura Kasugano was referred to by Ken as 'Ryu's stalker', and not only does she have similar moves, her alternate costume in Street Fighter IV has her dress almost exactly like him. Frightening.
- In The Elder Scrolls IV: Oblivion the Adoring Fan (no, that's his actual name) starts pestering you after you win the title of Arena champion. He's loud, obnoxious, and tends to flee from combat - but this is all intentional, due to him being a Take That to those who wanted multiplayer in the game. Unlike most examples of this trope, though, he will leave you alone if you tell him to (even if you're both in Oblivion).
- Mass Effect:
- Shepard gets one in Mass Effect 1 by the name of Conrad Verner. Paragon Shepard can let him down gently, Renegade Shepard can physically assault him. If the player doesn't have enough charm or intimidate points to do either of the above, he'll run off and get killed trying to prove himself.
- In the sequel he shows up again and says that you assaulted him, due to a save error that assumes you took the Renegade option. Since that point he's taken to dressing in a replica of your armor and acting like you did in the first game with side quests and looting. If you manage to talk him down, he'll go back to a normal life; if you upset him, he'll fall into a sewage treatment plant's turbines. This bug gets referenced in Mass Effect 3, where if you took the Paragon route in Mass Effect 1, Conrad apologizes for having accused Shepard of pointing a gun at him (the Renegade option), saying he was just really stressed out at the time.
- He shows up again in the final game, this time claiming that Cerberus is an ally of Shepard, and thus the galaxy. After being set straight, Conrad eventually reveals that he has a Stalker Shrine dedicated to Shepard. Alternatively, if you took the Paragon route he turns up as a doctor treating war refugees and saves Shepard from an assassination attempt, possibly dying in the process.
- In The Citadel DLC, Shepard is attacked by an evil clone. During the final fight the clone insists that they're better than Shepard. Shepard responds with "Are you kidding me? Conrad Verner is better at being me than you are!"
- The Sims 1 has the Obsessed Fan, who while not quite evil can be a considerable annoyance to famous Sims.
- No More Heroes: Desperate Struggle gives us Kimmy Howell, a fangirl of Travis Touchdown who eventually decides the only way to prove herself worthy of her crush is to kill him. Travis gives her a back-bodydrop and tells her to get over it.
- Amy Rose started out as a somewhat subdued variant of this towards Sonic the Hedgehog.
- Sonic the Hedgehog (2006) brings us SONICMAN! He's so convinced he's the real Sonic, he challenges the real Sonic to a foot race!
- In Crisis Core, Sephiroth has a devoted group of fans who know what shampoo and conditioner he uses and how much. One must assume that they know this either because they're going through his trash or breaking into his home on a regular basis.
- In Grand Theft Auto: Vice City, a series of missions involves Tommy acting as bodyguard for a Hair Metal band, Love Fist, after an obsessed fan attempts to kill them.
- In Saints Row 2, the "Crowd Control" diversions have you protecting a celebrity from various crazy fans, who get more aggressive, more numerous, and better-armed at higher levels.
- Seymour in Sinfest, — an ultra-religious character who goes around chiding people for not being pious enough. God refers to him as his "loony fanboy." The devil thinks God needs a better representation and likes to make fun of him. He has his own lame-ass fanboy as well. Who writes "Devil Fanfics". These two tend to be funnier together. Monique tried to play a crazy fangirl, but wasn't ready to go far enough to be believable, so she... outsourced this.
- Fans! (a comic which itself focused on fans of various sci-fi / fantasy shows) played with this concept when it introduced the character of Tim the Fanboy, a geeky stereotypical 'fanboy' who was a near-obsessive fan of the main characters. Unfortunately for them, once he realized that they weren't perfect, he felt betrayed and in turn betrayed them to become the 'fan' of a psychopathic time-travelling warlord who was doing her very best to wipe them out of existence.
- Mike from Something*Positive before his redemption. His stunts include trying to steal a tuft of Gary Gygax's beard, breaking into Nichelle Nichols's hotel room and begging her to marry him, and somehow setting fire to Steve Jackson.
- Piro and Largo's characters in the Endgames videogame-world of MegaTokyo acquire a loony fan; Largo promptly throws him off a cliff. As for the regular world...most of the main female characters have vast legions of stalkery fans at varying levels of creepiness (some are just obsessive, others are obsessive about collecting Panty Shots of their idols).
- In The Angry Video Game Nerd's review of the The Texas Chainsaw Massacre game, he gets kidnapped by a crazed fan and Leatherface.
- The Nostalgia Critic's Douchey McNitpick, a "fan" that watched all his videos 37 times solely to find all of the Critic's mistakes and harshly call him out on them.
- Stupid Mario Brothers had the Crazy-obsessed-stalker-who-makes-you-unable-to-sleep-at-night Fan, as evidenced by her "Let's Get Hammered" Mario T-Shirt.
- The Brian And Jill Show had Jill portraying "Superfan Diane", a Loony Fan of Brian's from his KLOS radio show.
- Jim Sterling has taken some time in The Jimquisition to show some of the more... out there gifts that his fans have sent him. Such things include a rubber replica of a pornstar's fist, a dragon tongue dildo, and a gay furry porn comic book. The sex toys have been used for various jokes, but the comic was a bit too loony.
- Melody Juniper in The Simpsons episode "Flaming Moe."
Melody: (to Bart) I can't believe I'm playing video games with Bart Simpson. I sketched you so many times in my dream journal.
- There's also the Loony Fan of Homer's in the episode where he becomes an opera singer. She threatens to tell the police that Homer attacked her unless he sleeps with her, then when Homer point-blank rejects her, she turns flat-out Yandere.
- Played for laughs in an early episode of Hi Hi Puffy AmiYumi, "Dis-Harmony", where Ami and Yumi found themselves being followed everywhere (and I do mean everywhere) by a crazy fangirl named Harmony, who would constantly remind them "I'm your #1 fan!"
- Fan Boy of Freakazoid! is another example played for laughs.
- The Critic had one of these in a direct parody of Misery - she's eventually beaten by one of her own collectibles, which Jay triggered by clapping.
- Guaca in The Emperor's New School. "Kuzco RULES!"
- Lorne, the "Friend for Life" (complete with his own musical jingle) who won't leave Sam and Max alone.
- This gets comes to a darker in retrospect head in "Fools Die on Friday", where Lorne highjacks a Swedish blimp and tries to crash into New York City in order to attract Sam and Max' attention.
- Sierra from Total Drama. She claims she knows everything about the cast, "Your hopes, your fears, your dental records!"
- Also, Kelsey, a fan contacted via webcam in Action, who has made a life-size Trent doll, which she kisses, and wrote him a love poem in which she apparently plans to murder and taxidermy him.
- Kim Possible's cousin Joss admired Kim so much that she dressed completely in Kim's style, had numerous pictures of Kim plastered around her room, talked about nothing except for Kim, and even accidentally made Kim fail the mission by trying to copy her in the middle of action. In the end she learned not to admire Kim that much, so she started admiring the sidekick Ron Stoppable instead.
- Frugal Lucre drove Dr. Drakken to distraction with his non-stop praise and commentary while they were sharing a prison cell. After they got out of prison, he found Drakken's lair and talked him into pulling a joint caper.
- WordGirl takes a spin on it: Glen emulates Dr. Two-Brains, completely fulfilling the trope in that he eventually tries to replace him... except that Two-Brains happens to be a villain himself.
- While most Decepticons are out for power, love fighting, or are just plain psycho or sadistic, Lugnut in Transformers Animated follows Megatron because he completely idealizes him. His constant praise annoys even Megatron, who in one memorable scene actually gets a robot version of a Twitchy Eye because Lugnut won't stop talking about how glorious he is instead of actually going outside and doing his job.
- Irving is so big a fan of Phineas and Ferb that he carries around a scrapbook of their adventures and often joins in their endeavors even if he's not invited. In an interesting case here, Irving started out as a one-off character but then began to recur, and shows signs of possibly becoming a Sixth Ranger to the boys' group of friends.
Irving: I got in the car when your mom stopped for gas!
- An episode of KaBlam! had to do with a fan visiting the set of the show, and constantly annoying Henry and June due to his huge obsession with them. He even wears Henry's outfit, June's sweatshirt, and even has his hair blue dyed to match June's (either that or it's natural). June constantly refers to him as "Weird Ryan from school", meaning the duo already knew him.
- SpongeBob is like this toward famous jellyfish hunter Kevin the Sea Cucumber in the episode "I'm Your Biggest Fanatic," repeatedly invading his personal space until Kevin finally gives in to letting SpongeBob go jellyfish hunting with him and his friends. Kevin turns out to be an egotistical Jerkass who delights in humiliating SpongeBob, only to have his ass handed to him when SpongeBob unexpectedly attracts the elusive King Jellyfish.
Barnacle Boy: Holy sea cow, it's that Sponge-kid!Mermaid Man: Quick lad, to the invisible boat mobile! Away!
- Let's not forget how he and his pal Patrick are this to their superheroes Mermaid Man and Barnacle Boy.
- "Foamy" from Avatar: The Last Airbender, who appears twice, is one of these. His only distinguishing characteristic is how he foams at the mouth and collapses on the ground whenever Aang is nearby. Zuko also seems to have his own in "Nightmares and Daydreams"; she has to be carted off by his guards.
- An episode of Jimmy Two-Shoes had a bunch of pandas becoming these to Heloise.
- One episode of Robot Chicken has a sketch in which "Hannah Montana" gives an autograph to a crazed fan who then shoots her dead.
- Parodied in the Futurama episode "That's Lobstertainment", when Bender becomes the official stalker to robot actor Calculon.
- He does it again in The Beast With A Billion Backs. Calculon asks outright if Bender's going to kill him, and Bender states that's not likely since in his mind they're friends.
- In the comic version, he specifically denies having broken into Calculon's house at night and transfused their oils so they'd always be together.
- Archer had Ruth Anne Litzenberger as his stalker when he was a sought-after Lacrosse player. Just before she was about to seduce him, she shoots Archer and jumps out the window.
- Katrina Rad in The Problem Solverz episode "Magic Clock". She follows the group around everywhere so she can write a blog entry about them, but she's really crazy about Roba.
- Adventures of Sonic the Hedgehog has Sonette, who, along with changing her name, has snuck into Sonic's room while he was sleeping and stolen merchandise from him. She also is frequently seen with a piece of Sonic's chewed gum in her mouth. note
- Chessie the Autograph Hound will go through any lengths to get the autographs of The Cattanooga Cats.
- Rosie from Thomas the Tank Engine was this to the titular character in the episode "Thomas And The Birthday Mail". She tries blowing off steam and whistles the way Thomas does, which didn't suit well with him.
- Sebastian in the Generator Rex episode "Rock My World". Attempts to force his favourite band back to its original roots and, when that fails, tries to kill them.
- Ronaldo from Steven Universe appears to have one, if this post from his Character Blog Keep Beach City Weird is any indication (saying they would "kill someone" for a chance to meet Ronaldo).
- John Lennon was shot and killed by a deranged fan. There's a notorious photo of the fan getting his copy of Double Fantasy autographed by Lennon five hours before the murder.
- In 1981 Ronald Reagan was shot, but only wounded, by a deranged fan of Jodie Foster who imitated the loony taxi driver in Taxi Driver, where the character supposedly rescues a teenage prostitute (played by Foster) by committing a murder.
- A deranged fan of Björk taped his own suicide on video while a song of hers played in the background, after sending her a booby-trapped parcel intended to squirt acid in her face.
- Actress Rebecca Schaeffer, who starred in the 1980s family sitcom My Sister Sam, was shot to death in the front lobby of her apartment building by a deranged fan.
- Actor Bill Mumy recounts an encounter with a deranged fan of The Twilight Zone here. Luckily, no one was physically harmed during the incident.
- X Japan once tried to use Loony Fan behavior to its own advantage - back in The Eighties, the band would actively encourage rougher/crazy fans to assault/harass/intimidate rival/non-friendly bands and particularly hostile critics. Officially, the practice was ended around 1988-89, as Yoshiki and the other band members realized that they could lose all they had legitimately gained as musicians - especially if someone had actually gotten killed, and as of the 2008 reunion, could not have possibly been officially wanted as, by then, everyone in the band was far more socially responsible and mature. Unfortunately, due to the band's popularity, fans that are members of the Yakuza or that are bosozoku or yankii with no qualms about fighting/harassing or that are just plain The Mentally Disturbed do still exist (because the band can't make them leave as fans) and will occasionally still engage in violent or harassing behavior even if said behavior isn't officially sanctioned anymore and is officially rejected.
- All K Pop groups have probably went through their fair share of Loony Fan - in Korean, termed Sasaeng Fans - but Dong Bang Shin Ki has probably got them the worst. There have been many reports of just what they've done. Even scarier when they can actually be seen in a documentary◊ about their private lives.
- These sasaengs would consider any type of attention - good or bad - from their oppas as something positive. They have injured them to the point of needing the hospital, but they won't care simply because 'oppa has finally noticed' them.
- Here's a list of just SOME of the things they've done.
- A picture◊ a fan took while breaking in their dorms.